Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7038072 | Process for monoalkylation of C-H acidic methylene groups | Kerstin Bodmann, Oliver Meyer, Jürgen Fieker, Renate Paulczynski | 2006-05-02 |
| 6730804 | Process for preparing cyclopropanecarboxylates of lower alcohols | Marcel Feld | 2004-05-04 |
| 6482971 | Process for the preparation of 3-alkoxyacrylonitrile | Renate Paulczynski, Artur Hunds | 2002-11-19 |
| 6452016 | Process for the preparation of 1,2,3,6-tetrahydro-2,2,6,6-tetramethylpyridine N-oxide | — | 2002-09-17 |
| 6423189 | Process for the preparation of 1,3-dichloropropane | — | 2002-07-23 |
| 6313356 | Process for the preparation of cyclooctanol | Guenther Kohler, Renate Paulczynski, Michael Beuth | 2001-11-06 |
| 6288264 | Process for preparing cyanoacetamide | Manuela Imig, Thomas Kalz | 2001-09-11 |
| 6166247 | Method for preparing cyclopropanecarboxylic acids | — | 2000-12-26 |
| 6107522 | Process for the preparation of cyclopropylamine | Wolfgang Kleemiss, Marcel Feld | 2000-08-22 |
| 6077956 | Process for preparing 1,2,3,6-tetrahydro-2,2,6,6-tetramethylpyridine | Udo Jegelka | 2000-06-20 |
| 6002046 | Process for the preparation of cyclopropyl alkyl ketones | Wolfgang Kleemiss, Udo Jegelka, Michael Korell | 1999-12-14 |
| 5902895 | Method for the continuous production of esters of thermally unstable acids | — | 1999-05-11 |
| 5888356 | Inhibition of polymerization of vinylaromatic or vinylaliphatic | Thomas Keil, Bernd Helpap | 1999-03-30 |
| 5763627 | Process for preparing cyclopropyl alkyl ketones and 4,5-dihydroalkyfurans | — | 1998-06-09 |
| 5728836 | Process for preparing 4-acylamino-2,2,6,6-tetramethylpiperidines | — | 1998-03-17 |
| 5629455 | Process for preparing cyclopropyl alkyl ketones and 4,5-dihydroalkylfurans | Marcel Feld | 1997-05-13 |
| 5576465 | Process for preparing unsaturated ethers | — | 1996-11-19 |
| 5527969 | Process for preparing acetaldehyde diethyl acetal | Moustafa El-Chahawi | 1996-06-18 |
| 5416215 | Process to preparing 2,2,6,6-tetra-methylpiperidine-n-oxyl and its 4-position substituted derivatives | Wilfried Buschken, Peter Bickert | 1995-05-16 |
| 5412146 | Process for the preparation of 2-cyanoacetoxypropionic esters | Marcel Feld | 1995-05-02 |
| 5371270 | Method of manufacturing chlorine-free cyclopropanecarboxylic acid methyl ester | Josef Metz | 1994-12-06 |
| 5288932 | Method for the production of substituted or unsubstituted chloromethyl cyclopropane and bromomethyl cyclopropane | — | 1994-02-22 |
| 5118834 | Process for the preparation of butyl 2-phenylcyclopropanecarboxylates | — | 1992-06-02 |
| 5008429 | Process for industrial application of Knoevenagel synthesis | Josef Metz | 1991-04-16 |
| 4990682 | Process for the preparation of 5-chloro-2-pentanone | Werner Otte | 1991-02-05 |